The sun is a yellow dwarf star that lies in the center of our solar ayatem, composed mainly of hydrogen and helium The energy produced in the sun'a core provides almost all the heat and light necessary for life on Earth
(A)
(3)
The parts of the sun near the equator complete one rotation every 36 days,
The sun is divided into several layers, with a dense core and a surface consisting of gas and plasma
The yellow dwarf star is one of several kinds of stars, but is the most common star in the Milky Way
galaxy
Gravitational pull from the sun causes the matter in the sun to become more tightly packed, producing
energy
(D)

kdkdkrnmcnc

explanation:

wisjndnfnnjjdjdjxn

they are both synthetic elements

explanation:

d

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.